本文实例为大家分享了vue实现拖拽交换位置的具体代码，供大家参考，具体内容如下
<template>
<div class="root">
<transition-group tag="div" class="container">
<div
class="item"
:class="'item' + i"
v-for="(item, i) in items"
:key="item.key"
:style="{ 'background-color': item.color, border: '1px solid' }"
draggable="true"
@dragstart="handleDragStart($event, item)"
@dragover.prevent="handleDragOver($event, item)"
@dragenter="handleDragEnter($event, item)"
@dragend="handleDragEnd($event, item)"
>
<div>{{ item }}</div>
</div>
</transition-group>
</div>
</template>
<script>
export default {
name: "Toolbar",
data() {
return {
items: [
{ key: 1, color: "#3883a0" },
{ key: 2, color: "#4883a0" },
{ key: 3, color: "#5883a0" },
{ key: 4, color: "#6883a0" },
{ key: 5, color: "#7883a0" },
{ key: 6, color: "#8883a0" },
{ key: 7, color: "#9883a0" },
],
ending: null,
dragging: null,
};
},
methods: {
handleDragStart(e, item) {
this.dragging = item;
},
handleDragEnd(e, item) {
if (this.ending.key === this.dragging.key) {
return;
}
let newItems = [...this.items];
const src = newItems.indexOf(this.dragging);
const dst = newItems.indexOf(this.ending);
newItems.splice(src, 1, ...newItems.splice(dst, 1, newItems[src]));
console.log(newItems);
this.items = newItems;
this.$nextTick(() => {
this.dragging = null;
this.ending = null;
});
},
handleDragOver(e) {
// 首先把div变成可以放置的元素，即重写dragenter/dragover
// 在dragenter中针对放置目标来设置
e.dataTransfer.dropEffect = "move";
},
handleDragEnter(e, item) {
// 为需要移动的元素设置dragstart事件
e.dataTransfer.effectAllowed = "move";
this.ending = item;
},
},
};
</script>
<style lang="less" scoped>
.container {
display: flex;
flex-wrap: wrap;
}
.item {
width: 200px;
height: 200px;
margin: 10px;
color: #fff;
transition: all linear 0.3s;
}
.item0 {
width: 400px;
}
</style>效果
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持编程网。
